VoIP Phones - FritzBox: Difference between revisions

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Under "Telephony -> Telephone Numbers" you will need an entry for A&A, which should look like:
Under "Telephony -> Telephone Numbers" you will need an entry for A&A, which should look like:


Status Telephone Number Provider Preselection
Status Telephone Number Provider Preselection
(green dot) 01268xxxxxx voiceless.aa.net.uk* *123#
(green dot) 01268xxxxxx voiceless.aa.net.uk* *123#


I obscured our phone number, under "Status" you should see a green dot if successfully registered, the *123# is put in there by the Fritzbox, no need to set that up yourself.
I obscured our phone number, under "Status" you should see a green dot if successfully registered, the *123# is put in there by the Fritzbox, no need to set that up yourself.
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Under Account Information
Under Account Information
Use internet telephone number checked
* Use internet telephone number checked
Telephony provider Other provider
* Telephony provider Other provider


Telephone number for registration* your number in international format, I have +441268xxxxxx
Telephone number for registration
Internal telephone number in the FRITZ!Box** not really important, I have 01268xxxxx
* your number in international format, I have +441268xxxxxx
* Internal telephone number in the FRITZ!Box** not really important, I have 01268xxxxx
Display name (leave blank)
* Display name (leave blank)


Under Account Information
Under Account Information


Username, Authentication name, Password as supplied by A&A
*Username, Authentication name, Password as supplied by A&A
Registrar voiceless.aa.net.uk
*Registrar voiceless.aa.net.uk
Proxy server (leave blank)
*Proxy server (leave blank)
STUN server (leave blank)
*STUN server (leave blank)


Under Telephone Number Format:
Under Telephone Number Format:
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Telephone Number Format
Telephone Number Format


Precede the number dialed with these prefix numerals:
* Precede the number dialed with these prefix numerals:
Country code select "With prefix (0044)"
* Country code select "With prefix (0044)"
Area code select "Without prefix (1268)
* Area code select "Without prefix (1268)
Relay outgoing emergency calls without prefixes checked
Relay outgoing emergency calls without prefixes checked
Relay special rate numbers without prefixes checked
Relay special rate numbers without prefixes checked

Revision as of 19:27, 5 Ocak 2024


Some notes here for the fritzbox 7530: https://forums.thinkbroadband.com/voip/t/4749882-re-aa-voip-with-fritzbox-7530.html

I have a FB7590 on FritzOS 7.57 with A&A VoIP, all works fine.

Settings as follows:

Under "Telephony -> Telephone Numbers" you will need an entry for A&A, which should look like:

Status Telephone Number Provider Preselection
(green dot) 01268xxxxxx voiceless.aa.net.uk* *123#

I obscured our phone number, under "Status" you should see a green dot if successfully registered, the *123# is put in there by the Fritzbox, no need to set that up yourself.

There is an "edit" and "delete" button to the right. Once you click "edit" you see another page "Edit Telephone Number". Here I have got:

Under Account Information

  • Use internet telephone number checked
  • Telephony provider Other provider

Telephone number for registration

  • your number in international format, I have +441268xxxxxx
  • Internal telephone number in the FRITZ!Box** not really important, I have 01268xxxxx
  • Display name (leave blank)

Under Account Information

  • Username, Authentication name, Password as supplied by A&A
  • Registrar voiceless.aa.net.uk
  • Proxy server (leave blank)
  • STUN server (leave blank)

Under Telephone Number Format:

Telephone Number Format

  • Precede the number dialed with these prefix numerals:
  • Country code select "With prefix (0044)"
  • Area code select "Without prefix (1268)

Relay outgoing emergency calls without prefixes checked Relay special rate numbers without prefixes checked

the rest in this section is blank/unchecked

Under "Additional Settings for the Telephone Number":

  • DTMF transmission RTP or Inband
  • Suppress outgoing Caller ID (CLIR) CLIR via display name
  • Caller ID disabled
  • Provider supports G.726 in accordance with RFC 3551 unchecked
  • Provider supports call-back on busy (CCBS) in accordance with RFC 4235 unchecked
  • Provider supports forwarding of calls during the calling phase unchecked
  • Packet size in milliseconds in send direction 20

Under "Additional Settings for the Connection"

  • Use telephone number for registration checked
  • Always register via an internet connection checked

Contact internet telephony provider via

  • Transport protocol only via IPv4
  • The provider supports encrypted telephony via SRTP in accordance with RFC 3711 and RFC 4568 unchecked
  • Media protocol RTP/AVP
  • Provider supports MWI (RFC 3842) unchecked
  • Provider does not support REGISTER-fetch unchecked

It may also work with some of the above configured differently, but what is shown above works for me.


Fritz!Box
Tested on FireBrick SIP Server Not yet
IPv6 Support
Versions and models Tested Fon WLAN 7390


Firewall & Security

  • You will also want to set up firewall rules, as per the VoIP Firewall page.
  • Also see the VoIP Security page for information about securing your VoIP service.